Hi.
Don't have that game, but would suspect a short somewhere.
can you define where the ball/game is when the reset occurs?
When I refurb a machine, I always go through everything twice.
The first time through, gets it playing.
The second time through, cleans up issues...or, usually does.
You might try starting a game, and manually checkin each switch and stepping through all positions of the steppers. you may uncover the problem that way?

Start switch adjusted too closely. I bet it is that, and of course has a very simple fix. Regardless, definitely the place to start before you get too involved!

Hi James
Does the "fault" happen now and then --- OR did You accidentally (unwanted) hit the Replay-Button / Start-Button on the front of the pin ? --- and now You just wonder and ask about ?

Yes, we can start a new game NOT fully playing the "game in play" - lets say You play the first ball - You make just a couple of points and the ball drains --- You play the second ball - just a couple of points - and the ball drains. YOU SAY: I do not want to play the rest of the balls - I give up - I START A NEW GAME.

New to me - I looked-up in the ipdb-schematics of Queens Castle - new to me: (I believe) I saw a "function on Ball-Index-Relay" handling this feature.
I know the function from Williams pins - it is handled other. In a Williams pin we can start a new game beeing in "mid game" - BUT we can do it NOT BEFORE THE FIRST BALL drained.

So Zaccaria made an improvement on the functionality ...
Zaccaria are rather rare machines --- I show the functionality on Williams Fan-Tas-Tic.
I press the Replay-Button - IF (if) there are no credits on the counter (encircled burgundy red): The Replay-Stepper-Unit*** is at Zero***, Switch*** is open.
I have some credits, the game before has ended "normal" therefore the Game-Over-Relay has tripped, so "encircled red" "Switch on GO-Relay is CLOSED". Through this switch the Replay-Relay is activated - it lets the Coin-Relay pull-in - the Score-Motor starts to turn - the Reset-Relay pulls-in - the Reset-Stuff takes place. During the Reset-Stuff I can NOT start a new game because "encircled orange": Switch on Reset-Relay is open.
The Reset is done - the ball is kicked over to the Shooter Alley - ready to launch the first ball in a ONE-Player-Game.
A friend also wants to play --- well, doing the Reset-Stuff: The pin has resetted the COIN-Unit (how-many-players-want-to-participate-Unit) - so the Coin-Unit is NOT in last-position - so the switch is closed - I start for the second player --- the same applies to starting a 3- then 4-player-Game and now the Coin-Unit (4-players) reaches LAST position and opens the switch. I can not start a 5-player game - pressing the Replay Button shows NO reaction - because (encircled red): Doing the Reset-Stuff the pin also has resetted Ball-Count-Unit (so switch is open), has also resetted Player-Unit (so switch is open).

Player-1 plays the first ball - makes points - looses the ball - pin steps either to second player (Player-Unit steps and is no longer in Zero-Position so switch closes / is closed) - or in a 1-player-game the pin steps to second Ball (Ball-Count-Unit steps and is no longer in Zero-Position so switch closes / is closed). NOW being in "ball-two in a one-player-game / 2nd-player-ball-1" - NOW I can start a NEW game.
Write, if You have the fault happen now and then.

Replay-Stepper-Unit***, Zero***, Switch*** (encircled burgundy-red): THIS SWITCH we manipulate for "Free play": http://www.pinrepair.com/em/index3.htm#free , greetings Rolf

aFan-Tas-Tic-Work-01 (resized).jpg

Besides the issue you are seeing, this possibility is normal on a multiplayer unit, as it allows a new player to come into an already started (1st ball only) game.

Yves

My Funhouse has a setting for "Quick Restart" and when it is enabled, hitting the start button during Ball 2 or Ball 3 instantly restarts a new game (doing so during Ball 1 merely adds a new player, like normal)